Abstract The work deals with the cyclic behavior of 304 L and 316 L austenitic stainless steels subjected to stress or strain control. Particular attention is being given to the analysis of situations where the cyclic loading under a given amplitude was preceded by inelastic pre-deformation. The obtained results show that the cyclic stress-strain curve is not unique, as it depends on the maximum strain range reached previously. For the tests starting by a relaxation, the significant additional strain hardening was demonstrated when crossing from axial loading to the equivalent shear loading. A comparison between experimental results and those obtained by simulation shows that the MultiMechanism model (MM) prediction has a good qualitative agreement with the experimental results in the description of the different cyclic behavior phenomena investigated in this work with relatively small number of parameters. However, the MM model should be improved in order to better take into account certain situations like the strain hardening phenomenon exhibited in the sequential tests described here.

中文翻译：

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奥氏体不锈钢经过先前非弹性历史后循环行为的实验和数值分析

摘要 本文研究了 304 L 和 316 L 奥氏体不锈钢在应力或应变控制下的循环行为。特别注意分析给定振幅下的循环加载之前是非弹性预变形的情况。获得的结果表明循环应力-应变曲线不是唯一的，因为它取决于先前达到的最大应变范围。对于从松弛开始的测试，当从轴向载荷过渡到等效剪切载荷时，证明了显着的附加应变硬化。实验结果与模拟结果的比较表明，多机制模型（MM）预测与实验结果在描述本工作中研究的不同循环行为现象方面具有良好的定性一致性，参数数量相对较少。但是，应该改进 MM 模型，以便更好地考虑某些情况，例如此处描述的顺序测试中出现的应变硬化现象。